network scan inventory

Think of best-effort network scan inventory in terms of the regular mail (snail-mail) service. The mail is delivered if and when it can be, but it also might be lost (arriving at some undetermined time in the future or not at all). By comparison, IntServ is analogous to a custom mail service, such as diplomatic mail or courier services, with certain parameters regarding loss and delivery guaranteed

The framework of IntServ preserves the end-to-end semantics of QoS for IP. Key endpoints are the sender and receiver applications that request a desired service from the network for a set of flows, as defined by the source address, destination address, transport protocol, source port, and network scan inventory.